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Taxon profile

species

Paradrillia darnleyensis T. Shuto, 1983

kingdom Animalia - animals »  phylum Mollusca - mollusks »  class Gastropoda - gastropods »  order Neogastropoda »  family Horaiclavidae »  genus Paradrillia

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Paradrillia darnleyensis

Author: Jan Delsing

Description

Shell small, solid and claviform. Protoconch paucispiral, globose and smooth except for carinate last part. Teleoconch-whorls peripherally angulate. Sculpture of prominent subsutural and peripheral cords and distantly spaced crude axial ribs above peripheral angulation and irregular cancellation below angulation. Aperture rhomboid with short, widely open and obliquely truncated canal. Anal sinus deep with its apex close to peripheral cord. Parietal callus thick. Labrum spirally lirate inside.
Original description, Shuto 1983

Interchangeable taxa

Paradrillia MAKIYAMA, 1940 and Vexitomina POWELL,1942 show a common tendency of increasing axials on the lateral surface by abrupt and irregular intercalation of several riblets. Most of those riblets do not reach the peripheral angulation. This tendency is exaggerated on the present species. Interspaces between major axials and spirals are covered with fine reticulation of growth- and spiral lines. Subsutural and peripheral cords are provided with laterally elongate nodes at intersections with axial ribs. The present species is distinctive by the last mentioned feature and prominent substutural band among species of Paradrillia (s. s.), which have vertically elongate and closely spaced nodes on the peripheral cord and moderate subsutural cord.
Source: Shuto, 1983

Distribution

Type location: Darnley Island, Torrez Street, Queensland. Australia.
Author: Jan Delsing

Links and literature

EN Galli C.: WMSDB - Wolrdwide Mollusc Species Data Base July 10, 2013 [http://www.bagniliggia.it/WMSD/WMSDhome....] [as Paradrillia darnleyensis Shuto, 1983]
Data retrieved on: 22 November 2013

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